Worldwide emissions standards are becoming increasingly rigorous, and this leads to more complex engine demands. Several new PCU (Power Cell Unit) technologies are being applied to cope with these demands. This means engine parameters are changing, e.g. higher EGR (Exhaust Gas Recirculation) rates, higher PCP (Peak Cylinder Pressure), lower viscosity oils, higher oil contamination and soot. Therefore the operating conditions for the bearings have drastically changed, leading to an environment prone to seizure occurrences.There is a clear demand for seizure resistant bearings motivated mainly by the increased engine complexity described above. Therefore for HDD (Heavy Duty Diesel) applications the PCU robustness should not be compromised also in terms of wear and fatigue resistance. The polymeric coating developed by MAHLE was applied over a sputtered layer and has demonstrated to be a suitable solution to attend to the application demands. The seizure and wear resistance were strongly reinforced with the use of a polymeric coating when compared to a typical Al-Sn sputtered layer. The functional polymeric layer remains in place after long durability tests in a demanding HDD engine.This paper shows detailed bench and engine test results achieved with this new product to support the conclusions.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    New Polymeric Coating on Sputtered Bearings for Heavy Duty Diesel Engines


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Praca, Mario S. (Autor:in) / Ferreira, Matheus (Autor:in) / Mian, Omar (Autor:in) / Uehara, Samantha (Autor:in)

    Kongress:

    SAE 2013 World Congress & Exhibition ; 2013


    Erschienen in:

    Erscheinungsdatum :

    08.04.2013


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    New Polymeric Coating on Sputtered Bearings for Heavy Duty Diesel Engines

    Praca, M.S. / Uehara, S. / Ferreira, M. et al. | British Library Conference Proceedings | 2013


    Bearings for HEAVY-DUTY Automotive Engines

    WILLI, ALBERT B. | SAE Technical Papers | 1942


    Polymeric Coated Lead Free Bronze Bearings for High Durability in Medium Duty Diesel Engines

    Silva, Adalto / Ferreira, Matheus / Praça, Mário et al. | SAE Technical Papers | 2014


    Caterpillar 3406E Heavy Duty Diesel Engines

    Heitzman, R. E. / Balek, S.J. | SAE Technical Papers | 1993


    Caterpillar 3406E Heavy Duty Diesel Engines

    Balek, S. J. / Heitzman, R. E. / SAE | British Library Conference Proceedings | 1993